N.Y. Soc. Serv. Law § 143
If requested by an authorized representative of the state department of mental hygiene or of the department or by any social services official, the officials or executives of any corporation or partnership, and all employers of labor of any kind, doing business within the state of New York, shall furnish to such representative or social services official information relating to facts of which such officials, executives or employers shall have cognizance, concerning the last known address, social security number, plans providing care or other medical benefits by insurance or otherwise, wages, salaries, earnings or other income of any applicant for, or recipient of public assistance or care named in such request or of any relative legally responsible for the support of such applicant for, or recipient of public assistance or care, or of any person legally responsible for a person who is receiving services pursuant to section one hundred eleven-g of this chapter, or for the support of any patient of any state institution named by such representative of the state department of mental hygiene.
N.Y. Soc. Serv. Law § 143